"Both musicians are known to be curious minds, always ready to learn and to discover," according to a description on Jones' website. "When they improvise, borders disappear, they are free to migrate beyond prejudices, across continents. In a world where walls are being built and people are told where they cannot go, Sons of Chipotle want music to be a place of openness."

While Sons of Chipotle's appeal might be limited, intrigue remains. Jones is, after all, the sonic force behind some of Led Zeppelin's most groundbreaking studio work, like "When the Levee Breaks," "No Quarter," "Achilles Last Stand" and "In the Evening."

But if improvised electronic cello music isn't your thing (and how could you know the answer to that?), Dave Grohl suggested in August that Them Crooked Vultures might be returning soon. He noted that it's been a while since the trio got together and "...there's always something cooking."